diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2021-06-09 08:46:53 -0700 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2021-06-30 13:16:03 +0200 |
| commit | 28770ff935bce723c5799d292bc788770b69a733 (patch) | |
| tree | 7cace1f0832556f6bc7c1bde6d57dcf6ded918a5 /include/hw/virtio/vhost-backend.h | |
| parent | a6945f2287aa7f048b263d7187364cbf1dd5d94d (diff) | |
vhost: Distinguish errors in vhost_backend_init()
Instead of just returning 0/-1 and letting the caller make up a
meaningless error message, add an Error parameter to allow reporting the
real error and switch to 0/-errno so that different kind of errors can
be distinguished in the caller.
Specifically, in vhost-user, EPROTO is used for all errors that relate
to the connection itself, whereas other error codes are used for errors
relating to the content of the connection. This will allow us later to
automatically reconnect when the connection goes away, without ending up
in an endless loop if it's a permanent error in the configuration.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210609154658.350308-3-kwolf@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/hw/virtio/vhost-backend.h')
| -rw-r--r-- | include/hw/virtio/vhost-backend.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/hw/virtio/vhost-backend.h b/include/hw/virtio/vhost-backend.h index 8a6f8e2a7a..728ebb0ed9 100644 --- a/include/hw/virtio/vhost-backend.h +++ b/include/hw/virtio/vhost-backend.h @@ -37,7 +37,8 @@ struct vhost_scsi_target; struct vhost_iotlb_msg; struct vhost_virtqueue; -typedef int (*vhost_backend_init)(struct vhost_dev *dev, void *opaque); +typedef int (*vhost_backend_init)(struct vhost_dev *dev, void *opaque, + Error **errp); typedef int (*vhost_backend_cleanup)(struct vhost_dev *dev); typedef int (*vhost_backend_memslots_limit)(struct vhost_dev *dev); |